pingpong 0.0.1

`pingpong` is a library to aimed at simplifying things thing that should be easy
in django.

## Installation ##

1. Install lib with pip:

`pip install pingpong`

**- OR -**

Put the "pingpong" directory somewhere in your python path

2. Add "pingpong" to your installed apps (in the settings.py file)

## A better way to fire off emails

from pingpong.email import render_to_email

def some_function():

template = "emails/muffins.email"
context = { "your_mom": "Betty Crocker", "muffin_type": "blueberry" }
recipients = ['somebody@example.com']

# send an email!
render_to_email(template, context, recipients)

And the template, `emails/my_email_template.email` would be in your main
templates folder:

Delicious muffins thanks to {{ your_mom }}


Hi friend,

I'm writing to let you know that {{ your_mom }} made some superb
{{ muffin_type }} muffins. Please tell her thank you!

Thanks,
A Robot

The first non-blank line is the subject, everything following is the message.

Subject:

Delicious muffins thanks to Betty Crocker

Message:

I'm writing to let you know that Betty Crocker made some superb
blueberry muffins. Please tell her thank you!

Thanks,
A Robot

Whitespace is stripped from the beginning and end of the message.

## Passing system events to your app

set up listeners:

# listeners.py

from pingpong.utils import pong

@pong("dailycron")
def email_admins_about_daily_activity(ping_name, args, kwargs, **kw):
...


# models.py

... your models...

import listeners

Then you trigger all functions listening to "dailycron" like so:

$ python manage.py pong dailycron

If you pass extra args to the management command they will get passed along...

$ python manage.py pong cachecleared memcache:38174

In this case we're letting the app know that memcache on port 38174 just got
cleared.

from pingpong.utils import pong

@pong("cachecleared")
def warm_up_cache(ping_name, args, kwargs, **kw):
assert ping_name == "cachecleared"
assert args[0] == "memcache:38174"

cache_type, port = args[0].split(":")
...